Further reading

Benefit #3: Some HA products can detect when the primary server is unavailable and automatically fail over to the backup server. They can also automate a manually-initiated switchover to accommodate maintenance.

Benefit #4: A geographically remote replica server can serve as a disaster recovery solution, although the phrase "disaster recovery" is misleading as there is no need to recover anything. Instead, users are simply switched to the remote replica server.

In organizations that use HA technology but choose to continue to produce backup tapes as a failsafe option, the backup jobs can be run on the replica server, eliminating any impact on production operations.

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